Finding the Fourth Proportional to 987,449,905.80, 1,481,174,858.70 and 897,051,791.70
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Solution
The fourth proportional to 987,449,905.80, 1,481,174,858.70 and 897,051,791.70 is: 1,345,577,687.55
Step by Step Solution
- Step 1: Write the proportion equation
987,449,905.80 : 1,481,174,858.70 = 897,051,791.70 : x - Step 2: Convert to fraction form
987,449,905.80/1,481,174,858.70 = 897,051,791.70/x - Step 3: Cross multiply
987,449,905.80x = 1,481,174,858.70 × 897,051,791.70 - Step 4: Simplify right side
987,449,905.80x = 1,328,690,560,817,829,376 - Step 5: Solve for x
x = 1,328,690,560,817,829,376/987,449,905.80 - Step 6: Final answer
x = 1,345,577,687.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.